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Question
At 473 K, equilibrium constant Kc for decomposition of phosphorus pentachloride, PCl5is 8.3 ×10-3. If decomposition is depicted as,
\[\ce{PCl5 (g) ⇌ PCl3 (g) + Cl2 (g)}\] ΔrH° = 124.0 kJmol–1
Write an expression for Kc for the reaction.
Solution
`"K"_"c" (["PCl"_(3("g"))]["Cl"_(2("g"))])/(["PCl"_(5("g"))])`
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